java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 07:24:15,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 07:24:15,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 07:24:15,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 07:24:15,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 07:24:15,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 07:24:15,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 07:24:15,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 07:24:15,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 07:24:15,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 07:24:15,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 07:24:15,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 07:24:15,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 07:24:15,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 07:24:15,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 07:24:15,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 07:24:15,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 07:24:15,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 07:24:15,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 07:24:15,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 07:24:15,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 07:24:15,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 07:24:15,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 07:24:15,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 07:24:15,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 07:24:15,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 07:24:15,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 07:24:15,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 07:24:15,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 07:24:15,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 07:24:15,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 07:24:15,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 07:24:15,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 07:24:15,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 07:24:15,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 07:24:15,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 07:24:15,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 07:24:15,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 07:24:15,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 07:24:15,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 07:24:15,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 07:24:15,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 07:24:15,648 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 07:24:15,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 07:24:15,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 07:24:15,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 07:24:15,651 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 07:24:15,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 07:24:15,651 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 07:24:15,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 07:24:15,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 07:24:15,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 07:24:15,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 07:24:15,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 07:24:15,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 07:24:15,658 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 07:24:15,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 07:24:15,659 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 07:24:15,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 07:24:15,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 07:24:15,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 07:24:15,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 07:24:15,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 07:24:15,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 07:24:15,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 07:24:15,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 07:24:15,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 07:24:15,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 07:24:15,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 07:24:15,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 07:24:15,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 07:24:15,943 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 07:24:15,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 07:24:15,960 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 07:24:15,962 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 07:24:15,962 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 07:24:15,963 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2019-10-07 07:24:16,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48afd623b/17c026a9fb6840a982ffde0a137f8a29/FLAG597cce482 [2019-10-07 07:24:16,800 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 07:24:16,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2019-10-07 07:24:16,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48afd623b/17c026a9fb6840a982ffde0a137f8a29/FLAG597cce482 [2019-10-07 07:24:16,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48afd623b/17c026a9fb6840a982ffde0a137f8a29 [2019-10-07 07:24:16,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 07:24:16,917 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 07:24:16,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 07:24:16,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 07:24:16,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 07:24:16,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 07:24:16" (1/1) ... [2019-10-07 07:24:16,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d449b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:16, skipping insertion in model container [2019-10-07 07:24:16,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 07:24:16" (1/1) ... [2019-10-07 07:24:16,934 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 07:24:17,056 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 07:24:19,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 07:24:19,048 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 07:24:19,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 07:24:19,837 INFO L192 MainTranslator]: Completed translation [2019-10-07 07:24:19,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19 WrapperNode [2019-10-07 07:24:19,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 07:24:19,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 07:24:19,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 07:24:19,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 07:24:19,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19" (1/1) ... [2019-10-07 07:24:19,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19" (1/1) ... [2019-10-07 07:24:19,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19" (1/1) ... [2019-10-07 07:24:19,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19" (1/1) ... [2019-10-07 07:24:20,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19" (1/1) ... [2019-10-07 07:24:20,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19" (1/1) ... [2019-10-07 07:24:20,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19" (1/1) ... [2019-10-07 07:24:20,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 07:24:20,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 07:24:20,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 07:24:20,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 07:24:20,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 07:24:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 07:24:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 07:24:20,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-07 07:24:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-07 07:24:20,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 07:24:20,293 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-07 07:24:20,295 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-07 07:24:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2019-10-07 07:24:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2019-10-07 07:24:20,296 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2019-10-07 07:24:20,297 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2019-10-07 07:24:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-07 07:24:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-07 07:24:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2019-10-07 07:24:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2019-10-07 07:24:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure allow_write_access [2019-10-07 07:24:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-07 07:24:20,301 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_binfmt [2019-10-07 07:24:20,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-07 07:24:20,301 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-07 07:24:20,302 INFO L138 BoogieDeclarations]: Found implementation of procedure string_unescape_inplace [2019-10-07 07:24:20,302 INFO L138 BoogieDeclarations]: Found implementation of procedure check_file [2019-10-07 07:24:20,302 INFO L138 BoogieDeclarations]: Found implementation of procedure load_misc_binary [2019-10-07 07:24:20,302 INFO L138 BoogieDeclarations]: Found implementation of procedure scanarg [2019-10-07 07:24:20,302 INFO L138 BoogieDeclarations]: Found implementation of procedure check_special_flags [2019-10-07 07:24:20,302 INFO L138 BoogieDeclarations]: Found implementation of procedure create_entry [2019-10-07 07:24:20,302 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_command [2019-10-07 07:24:20,303 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_status [2019-10-07 07:24:20,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_get_inode [2019-10-07 07:24:20,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_evict_inode [2019-10-07 07:24:20,303 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_node [2019-10-07 07:24:20,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_entry_read [2019-10-07 07:24:20,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_entry_write [2019-10-07 07:24:20,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_register_write [2019-10-07 07:24:20,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_status_read [2019-10-07 07:24:20,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_status_write [2019-10-07 07:24:20,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_fill_super [2019-10-07 07:24:20,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bm_mount [2019-10-07 07:24:20,304 INFO L138 BoogieDeclarations]: Found implementation of procedure init_misc_binfmt [2019-10-07 07:24:20,304 INFO L138 BoogieDeclarations]: Found implementation of procedure exit_misc_binfmt [2019-10-07 07:24:20,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_misc_binfmt_7_2 [2019-10-07 07:24:20,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_init_init_misc_binfmt_7_11 [2019-10-07 07:24:20,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_allocate_external_0 [2019-10-07 07:24:20,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_5_1 [2019-10-07 07:24:20,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_dummy_resourceless_instance_5_7_4 [2019-10-07 07:24:20,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_deregister_file_operations_instance_1_7_5 [2019-10-07 07:24:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_6_2 [2019-10-07 07:24:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_dummy_resourceless_instance_5_7_6 [2019-10-07 07:24:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_file_operations_instance_1_7_7 [2019-10-07 07:24:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_3 [2019-10-07 07:24:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_7 [2019-10-07 07:24:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_3_8 [2019-10-07 07:24:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_3 [2019-10-07 07:24:20,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_4_7 [2019-10-07 07:24:20,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_entry_EMGentry_7 [2019-10-07 07:24:20,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 07:24:20,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_file_operations_instance_0 [2019-10-07 07:24:20,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_file_operations_instance_1 [2019-10-07 07:24:20,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_file_operations_instance_2 [2019-10-07 07:24:20,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_callback_0_22 [2019-10-07 07:24:20,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_callback_0_5 [2019-10-07 07:24:20,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_callback_1_22 [2019-10-07 07:24:20,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_callback_1_5 [2019-10-07 07:24:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_callback_2_22 [2019-10-07 07:24:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_callback_2_5 [2019-10-07 07:24:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_probe_0_12 [2019-10-07 07:24:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_probe_1_12 [2019-10-07 07:24:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_probe_2_12 [2019-10-07 07:24:20,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_write_0_4 [2019-10-07 07:24:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_write_1_4 [2019-10-07 07:24:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_instance_write_2_4 [2019-10-07 07:24:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_external_data [2019-10-07 07:24:20,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_filesystem [2019-10-07 07:24:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_linux_binfmt_dummy_resourceless_instance_3 [2019-10-07 07:24:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_super_operations_dummy_resourceless_instance_4 [2019-10-07 07:24:20,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2019-10-07 07:24:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2019-10-07 07:24:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2019-10-07 07:24:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_15 [2019-10-07 07:24:20,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2019-10-07 07:24:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_15 [2019-10-07 07:24:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2019-10-07 07:24:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_15 [2019-10-07 07:24:20,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2019-10-07 07:24:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_1 [2019-10-07 07:24:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_3_5 [2019-10-07 07:24:20,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_4_1 [2019-10-07 07:24:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_4_5 [2019-10-07 07:24:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_filesystem [2019-10-07 07:24:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2019-10-07 07:24:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-07 07:24:20,315 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-07 07:24:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_13 [2019-10-07 07:24:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2019-10-07 07:24:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2019-10-07 07:24:20,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2019-10-07 07:24:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_17 [2019-10-07 07:24:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_18 [2019-10-07 07:24:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_filesystem_19 [2019-10-07 07:24:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_filesystem_20 [2019-10-07 07:24:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-10-07 07:24:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-10-07 07:24:20,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spi_alloc_master [2019-10-07 07:24:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-07 07:24:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2019-10-07 07:24:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2019-10-07 07:24:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2019-10-07 07:24:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2019-10-07 07:24:20,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_init [2019-10-07 07:24:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2019-10-07 07:24:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2019-10-07 07:24:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc [2019-10-07 07:24:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2019-10-07 07:24:20,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-07 07:24:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-07 07:24:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-07 07:24:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-07 07:24:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2019-10-07 07:24:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-07 07:24:20,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2019-10-07 07:24:20,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2019-10-07 07:24:20,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xzalloc [2019-10-07 07:24:20,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc_unknown_size [2019-10-07 07:24:20,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc_unknown_size [2019-10-07 07:24:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc_unknown_size [2019-10-07 07:24:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc_unknown_size [2019-10-07 07:24:20,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-07 07:24:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-07 07:24:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-07 07:24:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2019-10-07 07:24:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2019-10-07 07:24:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_create [2019-10-07 07:24:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_create_N [2019-10-07 07:24:20,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_join [2019-10-07 07:24:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thread_join_N [2019-10-07 07:24:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-07 07:24:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_i_mutex_of_inode [2019-10-07 07:24:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-07 07:24:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-07 07:24:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-07 07:24:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-07 07:24:20,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-07 07:24:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock [2019-10-07 07:24:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-07 07:24:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-07 07:24:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-07 07:24:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-07 07:24:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-07 07:24:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_device [2019-10-07 07:24:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-07 07:24:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-07 07:24:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-07 07:24:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-07 07:24:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-07 07:24:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-07 07:24:20,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2019-10-07 07:24:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2019-10-07 07:24:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2019-10-07 07:24:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2019-10-07 07:24:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-07 07:24:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_free_pages [2019-10-07 07:24:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-07 07:24:20,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2019-10-07 07:24:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_binfmt [2019-10-07 07:24:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-07 07:24:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2019-10-07 07:24:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2019-10-07 07:24:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2019-10-07 07:24:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2019-10-07 07:24:20,333 INFO L138 BoogieDeclarations]: Found implementation of procedure bprm_change_interp [2019-10-07 07:24:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_inode [2019-10-07 07:24:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_strings_kernel [2019-10-07 07:24:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure current_fs_time [2019-10-07 07:24:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2019-10-07 07:24:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2019-10-07 07:24:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2019-10-07 07:24:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2019-10-07 07:24:20,334 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_nlink [2019-10-07 07:24:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure external_allocated_data [2019-10-07 07:24:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure fd_install [2019-10-07 07:24:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2019-10-07 07:24:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2019-10-07 07:24:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_ino [2019-10-07 07:24:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unused_fd_flags [2019-10-07 07:24:20,335 INFO L138 BoogieDeclarations]: Found implementation of procedure iput [2019-10-07 07:24:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_read [2019-10-07 07:24:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_litter_super [2019-10-07 07:24:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2019-10-07 07:24:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2019-10-07 07:24:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-07 07:24:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure lockref_get [2019-10-07 07:24:20,336 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup_one_len [2019-10-07 07:24:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-07 07:24:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure mount_single [2019-10-07 07:24:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure new_inode [2019-10-07 07:24:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-07 07:24:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure open_exec [2019-10-07 07:24:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_binprm [2019-10-07 07:24:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure register_filesystem [2019-10-07 07:24:20,337 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_arg_zero [2019-10-07 07:24:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure search_binary_handler [2019-10-07 07:24:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_fill_super [2019-10-07 07:24:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_pin_fs [2019-10-07 07:24:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_read_from_buffer [2019-10-07 07:24:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_release_fs [2019-10-07 07:24:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2019-10-07 07:24:20,338 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2019-10-07 07:24:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure string_unescape [2019-10-07 07:24:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2019-10-07 07:24:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure sys_close [2019-10-07 07:24:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_binfmt [2019-10-07 07:24:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_filesystem [2019-10-07 07:24:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure would_dump [2019-10-07 07:24:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-07 07:24:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-07 07:24:20,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-07 07:24:20,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-07 07:24:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-07 07:24:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-07 07:24:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2019-10-07 07:24:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2019-10-07 07:24:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_13 [2019-10-07 07:24:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2019-10-07 07:24:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_17 [2019-10-07 07:24:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2019-10-07 07:24:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2019-10-07 07:24:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-07 07:24:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_init [2019-10-07 07:24:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2019-10-07 07:24:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-07 07:24:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2019-10-07 07:24:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-07 07:24:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-07 07:24:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2019-10-07 07:24:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2019-10-07 07:24:20,342 INFO L130 BoogieDeclarations]: Found specification of procedure external_allocated_data [2019-10-07 07:24:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-07 07:24:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 07:24:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-07 07:24:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-07 07:24:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 07:24:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2019-10-07 07:24:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2019-10-07 07:24:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2019-10-07 07:24:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2019-10-07 07:24:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2019-10-07 07:24:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-07 07:24:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 07:24:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-07 07:24:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2019-10-07 07:24:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-07 07:24:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2019-10-07 07:24:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-07 07:24:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-07 07:24:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-07 07:24:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2019-10-07 07:24:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-07 07:24:20,345 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2019-10-07 07:24:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure strchr [2019-10-07 07:24:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2019-10-07 07:24:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-07 07:24:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2019-10-07 07:24:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2019-10-07 07:24:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_18 [2019-10-07 07:24:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2019-10-07 07:24:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2019-10-07 07:24:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2019-10-07 07:24:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2019-10-07 07:24:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure lockref_get [2019-10-07 07:24:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2019-10-07 07:24:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2019-10-07 07:24:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2019-10-07 07:24:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2019-10-07 07:24:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure current_fs_time [2019-10-07 07:24:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure drop_nlink [2019-10-07 07:24:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure mount_single [2019-10-07 07:24:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure kill_litter_super [2019-10-07 07:24:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure register_filesystem [2019-10-07 07:24:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_filesystem_19 [2019-10-07 07:24:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_filesystem [2019-10-07 07:24:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_filesystem_20 [2019-10-07 07:24:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure iput [2019-10-07 07:24:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2019-10-07 07:24:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure allow_write_access [2019-10-07 07:24:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_read [2019-10-07 07:24:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure open_exec [2019-10-07 07:24:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2019-10-07 07:24:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_ino [2019-10-07 07:24:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure clear_inode [2019-10-07 07:24:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure new_inode [2019-10-07 07:24:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-07 07:24:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2019-10-07 07:24:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure simple_fill_super [2019-10-07 07:24:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure simple_pin_fs [2019-10-07 07:24:20,350 INFO L130 BoogieDeclarations]: Found specification of procedure simple_release_fs [2019-10-07 07:24:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure simple_read_from_buffer [2019-10-07 07:24:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure __get_free_pages [2019-10-07 07:24:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2019-10-07 07:24:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-07 07:24:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-07 07:24:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-07 07:24:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure __register_binfmt [2019-10-07 07:24:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure insert_binfmt [2019-10-07 07:24:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_binfmt [2019-10-07 07:24:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_binprm [2019-10-07 07:24:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure remove_arg_zero [2019-10-07 07:24:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure search_binary_handler [2019-10-07 07:24:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure would_dump [2019-10-07 07:24:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure bprm_change_interp [2019-10-07 07:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure copy_strings_kernel [2019-10-07 07:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-07 07:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-07 07:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-07 07:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-07 07:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure string_unescape [2019-10-07 07:24:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure string_unescape_inplace [2019-10-07 07:24:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2019-10-07 07:24:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure get_unused_fd_flags [2019-10-07 07:24:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure fd_install [2019-10-07 07:24:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure lookup_one_len [2019-10-07 07:24:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure sys_close [2019-10-07 07:24:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 07:24:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure check_file [2019-10-07 07:24:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure load_misc_binary [2019-10-07 07:24:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 07:24:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-07 07:24:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 07:24:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure scanarg [2019-10-07 07:24:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure check_special_flags [2019-10-07 07:24:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure create_entry [2019-10-07 07:24:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure parse_command [2019-10-07 07:24:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure entry_status [2019-10-07 07:24:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure bm_get_inode [2019-10-07 07:24:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure bm_evict_inode [2019-10-07 07:24:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure kill_node [2019-10-07 07:24:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure bm_entry_read [2019-10-07 07:24:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure bm_entry_write [2019-10-07 07:24:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure bm_register_write [2019-10-07 07:24:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure bm_status_read [2019-10-07 07:24:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure bm_status_write [2019-10-07 07:24:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure bm_fill_super [2019-10-07 07:24:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure bm_mount [2019-10-07 07:24:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure init_misc_binfmt [2019-10-07 07:24:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure exit_misc_binfmt [2019-10-07 07:24:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_misc_binfmt_7_2 [2019-10-07 07:24:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_init_init_misc_binfmt_7_11 [2019-10-07 07:24:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_allocate_external_0 [2019-10-07 07:24:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_5_1 [2019-10-07 07:24:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_dummy_resourceless_instance_5_7_4 [2019-10-07 07:24:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_deregister_file_operations_instance_1_7_5 [2019-10-07 07:24:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_6_2 [2019-10-07 07:24:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_dummy_resourceless_instance_5_7_6 [2019-10-07 07:24:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_file_operations_instance_1_7_7 [2019-10-07 07:24:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_3 [2019-10-07 07:24:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_7 [2019-10-07 07:24:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_3_8 [2019-10-07 07:24:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_3 [2019-10-07 07:24:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_4_7 [2019-10-07 07:24:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_entry_EMGentry_7 [2019-10-07 07:24:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 07:24:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_file_operations_instance_0 [2019-10-07 07:24:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_file_operations_instance_1 [2019-10-07 07:24:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_file_operations_instance_2 [2019-10-07 07:24:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_callback_0_22 [2019-10-07 07:24:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_callback_0_5 [2019-10-07 07:24:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_callback_1_22 [2019-10-07 07:24:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_callback_1_5 [2019-10-07 07:24:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_callback_2_22 [2019-10-07 07:24:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_callback_2_5 [2019-10-07 07:24:20,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_probe_0_12 [2019-10-07 07:24:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_probe_1_12 [2019-10-07 07:24:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_probe_2_12 [2019-10-07 07:24:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_write_0_4 [2019-10-07 07:24:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_write_1_4 [2019-10-07 07:24:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_instance_write_2_4 [2019-10-07 07:24:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_external_data [2019-10-07 07:24:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_filesystem [2019-10-07 07:24:20,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_linux_binfmt_dummy_resourceless_instance_3 [2019-10-07 07:24:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_super_operations_dummy_resourceless_instance_4 [2019-10-07 07:24:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2019-10-07 07:24:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2019-10-07 07:24:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2019-10-07 07:24:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_15 [2019-10-07 07:24:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2019-10-07 07:24:20,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_15 [2019-10-07 07:24:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2019-10-07 07:24:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_15 [2019-10-07 07:24:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2019-10-07 07:24:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_1 [2019-10-07 07:24:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_3_5 [2019-10-07 07:24:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_4_1 [2019-10-07 07:24:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_4_5 [2019-10-07 07:24:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_filesystem [2019-10-07 07:24:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2019-10-07 07:24:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-07 07:24:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xzalloc [2019-10-07 07:24:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-10-07 07:24:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-10-07 07:24:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-07 07:24:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spi_alloc_master [2019-10-07 07:24:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2019-10-07 07:24:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2019-10-07 07:24:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2019-10-07 07:24:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-07 07:24:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2019-10-07 07:24:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc [2019-10-07 07:24:20,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2019-10-07 07:24:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-07 07:24:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2019-10-07 07:24:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc_unknown_size [2019-10-07 07:24:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc_unknown_size [2019-10-07 07:24:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc_unknown_size [2019-10-07 07:24:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc_unknown_size [2019-10-07 07:24:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 07:24:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-07 07:24:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 07:24:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 07:24:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-07 07:24:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-07 07:24:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-07 07:24:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2019-10-07 07:24:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2019-10-07 07:24:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 07:24:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-07 07:24:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 07:24:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_create [2019-10-07 07:24:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_create_N [2019-10-07 07:24:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_join [2019-10-07 07:24:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thread_join_N [2019-10-07 07:24:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-07 07:24:20,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2019-10-07 07:24:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2019-10-07 07:24:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2019-10-07 07:24:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2019-10-07 07:24:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_i_mutex_of_inode [2019-10-07 07:24:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2019-10-07 07:24:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2019-10-07 07:24:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2019-10-07 07:24:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-07 07:24:20,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock [2019-10-07 07:24:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-07 07:24:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-07 07:24:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-07 07:24:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-07 07:24:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-07 07:24:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_device [2019-10-07 07:24:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-07 07:24:20,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-07 07:24:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-07 07:24:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-07 07:24:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 07:24:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-07 07:24:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-07 07:24:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-07 07:24:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 07:24:20,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 07:24:20,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-07 07:24:20,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 07:24:20,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 07:24:21,423 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-07 07:24:24,184 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint mainFINAL: assume true; [2019-10-07 07:24:28,204 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 07:24:28,204 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 07:24:28,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 07:24:28 BoogieIcfgContainer [2019-10-07 07:24:28,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 07:24:28,208 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 07:24:28,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 07:24:28,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 07:24:28,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 07:24:16" (1/3) ... [2019-10-07 07:24:28,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e53928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 07:24:28, skipping insertion in model container [2019-10-07 07:24:28,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 07:24:19" (2/3) ... [2019-10-07 07:24:28,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e53928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 07:24:28, skipping insertion in model container [2019-10-07 07:24:28,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 07:24:28" (3/3) ... [2019-10-07 07:24:28,216 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2019-10-07 07:24:28,226 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 07:24:28,240 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-07 07:24:28,252 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-07 07:24:28,292 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 07:24:28,292 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 07:24:28,292 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 07:24:28,292 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 07:24:28,293 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 07:24:28,293 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 07:24:28,293 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 07:24:28,293 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 07:24:28,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states. [2019-10-07 07:24:28,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-07 07:24:28,388 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:24:28,390 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:24:28,394 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:24:28,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:24:28,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1506239325, now seen corresponding path program 1 times [2019-10-07 07:24:28,408 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:24:28,408 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:28,409 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:28,409 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:28,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:24:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2019-10-07 07:24:29,401 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:29,402 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:24:29,402 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:24:29,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:24:29,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:24:29,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:29,428 INFO L87 Difference]: Start difference. First operand 1345 states. Second operand 3 states. [2019-10-07 07:24:29,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:24:29,810 INFO L93 Difference]: Finished difference Result 3309 states and 4385 transitions. [2019-10-07 07:24:29,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:24:29,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2019-10-07 07:24:29,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:24:29,855 INFO L225 Difference]: With dead ends: 3309 [2019-10-07 07:24:29,855 INFO L226 Difference]: Without dead ends: 2162 [2019-10-07 07:24:29,867 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:29,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2162 states. [2019-10-07 07:24:30,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2162 to 2149. [2019-10-07 07:24:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2149 states. [2019-10-07 07:24:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2149 states to 2149 states and 2805 transitions. [2019-10-07 07:24:30,119 INFO L78 Accepts]: Start accepts. Automaton has 2149 states and 2805 transitions. Word has length 214 [2019-10-07 07:24:30,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:24:30,121 INFO L462 AbstractCegarLoop]: Abstraction has 2149 states and 2805 transitions. [2019-10-07 07:24:30,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:24:30,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2149 states and 2805 transitions. [2019-10-07 07:24:30,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-07 07:24:30,131 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:24:30,131 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:24:30,132 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:24:30,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:24:30,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1043806871, now seen corresponding path program 1 times [2019-10-07 07:24:30,132 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:24:30,133 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:30,133 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:30,133 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:30,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:24:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1503 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2019-10-07 07:24:30,415 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:30,416 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:24:30,416 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:24:30,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:24:30,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:24:30,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:30,420 INFO L87 Difference]: Start difference. First operand 2149 states and 2805 transitions. Second operand 3 states. [2019-10-07 07:24:30,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:24:30,616 INFO L93 Difference]: Finished difference Result 3192 states and 4151 transitions. [2019-10-07 07:24:30,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:24:30,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2019-10-07 07:24:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:24:30,754 INFO L225 Difference]: With dead ends: 3192 [2019-10-07 07:24:30,755 INFO L226 Difference]: Without dead ends: 3148 [2019-10-07 07:24:30,757 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:30,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2019-10-07 07:24:30,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3135. [2019-10-07 07:24:30,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3135 states. [2019-10-07 07:24:30,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 4091 transitions. [2019-10-07 07:24:30,924 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 4091 transitions. Word has length 240 [2019-10-07 07:24:30,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:24:30,925 INFO L462 AbstractCegarLoop]: Abstraction has 3135 states and 4091 transitions. [2019-10-07 07:24:30,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:24:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 4091 transitions. [2019-10-07 07:24:30,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-07 07:24:30,934 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:24:30,934 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:24:30,935 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:24:30,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:24:30,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1608121765, now seen corresponding path program 1 times [2019-10-07 07:24:30,936 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:24:30,936 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:30,936 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:30,937 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:24:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1503 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2019-10-07 07:24:31,199 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:31,199 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:24:31,199 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:24:31,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:24:31,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:24:31,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:31,201 INFO L87 Difference]: Start difference. First operand 3135 states and 4091 transitions. Second operand 3 states. [2019-10-07 07:24:31,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:24:31,485 INFO L93 Difference]: Finished difference Result 4150 states and 5411 transitions. [2019-10-07 07:24:31,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:24:31,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2019-10-07 07:24:31,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:24:31,518 INFO L225 Difference]: With dead ends: 4150 [2019-10-07 07:24:31,518 INFO L226 Difference]: Without dead ends: 4106 [2019-10-07 07:24:31,522 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:31,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4106 states. [2019-10-07 07:24:31,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4106 to 4093. [2019-10-07 07:24:31,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4093 states. [2019-10-07 07:24:31,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4093 states to 4093 states and 5351 transitions. [2019-10-07 07:24:31,784 INFO L78 Accepts]: Start accepts. Automaton has 4093 states and 5351 transitions. Word has length 241 [2019-10-07 07:24:31,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:24:31,786 INFO L462 AbstractCegarLoop]: Abstraction has 4093 states and 5351 transitions. [2019-10-07 07:24:31,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:24:31,786 INFO L276 IsEmpty]: Start isEmpty. Operand 4093 states and 5351 transitions. [2019-10-07 07:24:31,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-10-07 07:24:31,917 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:24:31,917 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:24:31,918 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:24:31,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:24:31,920 INFO L82 PathProgramCache]: Analyzing trace with hash -978756628, now seen corresponding path program 1 times [2019-10-07 07:24:31,920 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:24:31,920 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:31,920 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:31,920 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:31,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:24:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:32,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1517 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1511 trivial. 0 not checked. [2019-10-07 07:24:32,226 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:32,226 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:24:32,226 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 07:24:32,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:24:32,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:24:32,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 07:24:32,229 INFO L87 Difference]: Start difference. First operand 4093 states and 5351 transitions. Second operand 5 states. [2019-10-07 07:24:41,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:24:41,575 INFO L93 Difference]: Finished difference Result 9086 states and 11884 transitions. [2019-10-07 07:24:41,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 07:24:41,576 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 263 [2019-10-07 07:24:41,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:24:41,605 INFO L225 Difference]: With dead ends: 9086 [2019-10-07 07:24:41,606 INFO L226 Difference]: Without dead ends: 5061 [2019-10-07 07:24:41,620 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 07:24:41,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5061 states. [2019-10-07 07:24:41,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5061 to 5055. [2019-10-07 07:24:41,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5055 states. [2019-10-07 07:24:41,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5055 states to 5055 states and 6612 transitions. [2019-10-07 07:24:41,912 INFO L78 Accepts]: Start accepts. Automaton has 5055 states and 6612 transitions. Word has length 263 [2019-10-07 07:24:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:24:41,914 INFO L462 AbstractCegarLoop]: Abstraction has 5055 states and 6612 transitions. [2019-10-07 07:24:41,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:24:41,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5055 states and 6612 transitions. [2019-10-07 07:24:41,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-10-07 07:24:41,930 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:24:41,930 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:24:41,931 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:24:41,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:24:41,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1553345140, now seen corresponding path program 1 times [2019-10-07 07:24:41,932 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:24:41,932 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:41,933 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:41,933 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:41,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:24:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:42,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1522 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1515 trivial. 0 not checked. [2019-10-07 07:24:42,262 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:42,262 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:24:42,263 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 07:24:42,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:24:42,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:24:42,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 07:24:42,264 INFO L87 Difference]: Start difference. First operand 5055 states and 6612 transitions. Second operand 5 states. [2019-10-07 07:24:49,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:24:49,203 INFO L93 Difference]: Finished difference Result 10056 states and 13144 transitions. [2019-10-07 07:24:49,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 07:24:49,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 265 [2019-10-07 07:24:49,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:24:49,235 INFO L225 Difference]: With dead ends: 10056 [2019-10-07 07:24:49,235 INFO L226 Difference]: Without dead ends: 5069 [2019-10-07 07:24:49,253 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 07:24:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5069 states. [2019-10-07 07:24:49,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5069 to 5063. [2019-10-07 07:24:49,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5063 states. [2019-10-07 07:24:49,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5063 states to 5063 states and 6612 transitions. [2019-10-07 07:24:49,482 INFO L78 Accepts]: Start accepts. Automaton has 5063 states and 6612 transitions. Word has length 265 [2019-10-07 07:24:49,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:24:49,484 INFO L462 AbstractCegarLoop]: Abstraction has 5063 states and 6612 transitions. [2019-10-07 07:24:49,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:24:49,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5063 states and 6612 transitions. [2019-10-07 07:24:49,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-07 07:24:49,495 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:24:49,495 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:24:49,495 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:24:49,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:24:49,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1456774263, now seen corresponding path program 1 times [2019-10-07 07:24:49,496 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:24:49,496 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:49,496 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:49,496 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:49,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:24:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:49,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1527 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1527 trivial. 0 not checked. [2019-10-07 07:24:49,806 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:49,806 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:24:49,807 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:24:49,807 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:24:49,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:24:49,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:49,808 INFO L87 Difference]: Start difference. First operand 5063 states and 6612 transitions. Second operand 3 states. [2019-10-07 07:24:50,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:24:50,264 INFO L93 Difference]: Finished difference Result 11645 states and 15106 transitions. [2019-10-07 07:24:50,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:24:50,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-10-07 07:24:50,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:24:50,307 INFO L225 Difference]: With dead ends: 11645 [2019-10-07 07:24:50,308 INFO L226 Difference]: Without dead ends: 6650 [2019-10-07 07:24:50,329 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:50,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6650 states. [2019-10-07 07:24:50,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6650 to 6619. [2019-10-07 07:24:50,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6619 states. [2019-10-07 07:24:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6619 states to 6619 states and 8498 transitions. [2019-10-07 07:24:50,648 INFO L78 Accepts]: Start accepts. Automaton has 6619 states and 8498 transitions. Word has length 277 [2019-10-07 07:24:50,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:24:50,649 INFO L462 AbstractCegarLoop]: Abstraction has 6619 states and 8498 transitions. [2019-10-07 07:24:50,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:24:50,649 INFO L276 IsEmpty]: Start isEmpty. Operand 6619 states and 8498 transitions. [2019-10-07 07:24:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-07 07:24:50,661 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:24:50,661 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:24:50,662 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:24:50,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:24:50,662 INFO L82 PathProgramCache]: Analyzing trace with hash 501368555, now seen corresponding path program 1 times [2019-10-07 07:24:50,662 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:24:50,662 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:50,663 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:50,663 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:50,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:24:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:50,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2019-10-07 07:24:50,962 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:50,963 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:24:50,964 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:24:50,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:24:50,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:24:50,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:50,967 INFO L87 Difference]: Start difference. First operand 6619 states and 8498 transitions. Second operand 3 states. [2019-10-07 07:24:51,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:24:51,703 INFO L93 Difference]: Finished difference Result 17593 states and 22535 transitions. [2019-10-07 07:24:51,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:24:51,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-10-07 07:24:51,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:24:51,759 INFO L225 Difference]: With dead ends: 17593 [2019-10-07 07:24:51,759 INFO L226 Difference]: Without dead ends: 11042 [2019-10-07 07:24:51,783 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:51,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2019-10-07 07:24:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 11005. [2019-10-07 07:24:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11005 states. [2019-10-07 07:24:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11005 states to 11005 states and 14002 transitions. [2019-10-07 07:24:52,258 INFO L78 Accepts]: Start accepts. Automaton has 11005 states and 14002 transitions. Word has length 277 [2019-10-07 07:24:52,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:24:52,258 INFO L462 AbstractCegarLoop]: Abstraction has 11005 states and 14002 transitions. [2019-10-07 07:24:52,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:24:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 11005 states and 14002 transitions. [2019-10-07 07:24:52,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-10-07 07:24:52,271 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:24:52,272 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:24:52,272 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:24:52,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:24:52,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1220713941, now seen corresponding path program 1 times [2019-10-07 07:24:52,273 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:24:52,273 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:52,273 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:52,273 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:52,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:24:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:52,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2019-10-07 07:24:52,527 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:52,527 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:24:52,527 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:24:52,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:24:52,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:24:52,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:52,528 INFO L87 Difference]: Start difference. First operand 11005 states and 14002 transitions. Second operand 3 states. [2019-10-07 07:24:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:24:53,412 INFO L93 Difference]: Finished difference Result 29609 states and 37709 transitions. [2019-10-07 07:24:53,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:24:53,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2019-10-07 07:24:53,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:24:53,502 INFO L225 Difference]: With dead ends: 29609 [2019-10-07 07:24:53,502 INFO L226 Difference]: Without dead ends: 18672 [2019-10-07 07:24:53,535 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:24:53,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18672 states. [2019-10-07 07:24:54,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18672 to 18647. [2019-10-07 07:24:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18647 states. [2019-10-07 07:24:54,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18647 states to 18647 states and 23618 transitions. [2019-10-07 07:24:54,393 INFO L78 Accepts]: Start accepts. Automaton has 18647 states and 23618 transitions. Word has length 279 [2019-10-07 07:24:54,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:24:54,394 INFO L462 AbstractCegarLoop]: Abstraction has 18647 states and 23618 transitions. [2019-10-07 07:24:54,394 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:24:54,394 INFO L276 IsEmpty]: Start isEmpty. Operand 18647 states and 23618 transitions. [2019-10-07 07:24:54,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2019-10-07 07:24:54,414 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:24:54,414 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:24:54,415 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:24:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:24:54,415 INFO L82 PathProgramCache]: Analyzing trace with hash 119804518, now seen corresponding path program 1 times [2019-10-07 07:24:54,416 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:24:54,416 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:54,416 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:54,416 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:24:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:24:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1546 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked. [2019-10-07 07:24:54,835 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:24:54,835 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 07:24:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 07:24:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:24:55,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 3811 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 07:24:55,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 07:24:55,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1546 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 1517 trivial. 0 not checked. [2019-10-07 07:24:55,872 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 07:24:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1546 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked. [2019-10-07 07:24:56,582 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 07:24:56,582 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2019-10-07 07:24:56,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:24:56,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:24:56,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-10-07 07:24:56,585 INFO L87 Difference]: Start difference. First operand 18647 states and 23618 transitions. Second operand 5 states. [2019-10-07 07:25:02,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:25:02,615 INFO L93 Difference]: Finished difference Result 37629 states and 47619 transitions. [2019-10-07 07:25:02,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 07:25:02,616 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 293 [2019-10-07 07:25:02,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:25:02,720 INFO L225 Difference]: With dead ends: 37629 [2019-10-07 07:25:02,721 INFO L226 Difference]: Without dead ends: 19050 [2019-10-07 07:25:02,777 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 582 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-07 07:25:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19050 states. [2019-10-07 07:25:03,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19050 to 19036. [2019-10-07 07:25:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19036 states. [2019-10-07 07:25:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19036 states to 19036 states and 24058 transitions. [2019-10-07 07:25:03,879 INFO L78 Accepts]: Start accepts. Automaton has 19036 states and 24058 transitions. Word has length 293 [2019-10-07 07:25:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:25:03,879 INFO L462 AbstractCegarLoop]: Abstraction has 19036 states and 24058 transitions. [2019-10-07 07:25:03,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:25:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 19036 states and 24058 transitions. [2019-10-07 07:25:03,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-07 07:25:03,886 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:25:03,886 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:25:04,105 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 07:25:04,105 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:25:04,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:25:04,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1148582381, now seen corresponding path program 1 times [2019-10-07 07:25:04,106 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:25:04,106 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:04,107 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:04,107 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:04,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:25:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:25:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1543 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2019-10-07 07:25:04,494 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:04,495 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:25:04,495 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 07:25:04,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:25:04,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:25:04,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 07:25:04,506 INFO L87 Difference]: Start difference. First operand 19036 states and 24058 transitions. Second operand 5 states. [2019-10-07 07:25:05,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:25:05,721 INFO L93 Difference]: Finished difference Result 19336 states and 24300 transitions. [2019-10-07 07:25:05,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 07:25:05,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 286 [2019-10-07 07:25:05,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:25:05,794 INFO L225 Difference]: With dead ends: 19336 [2019-10-07 07:25:05,794 INFO L226 Difference]: Without dead ends: 19334 [2019-10-07 07:25:05,805 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 07:25:05,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19334 states. [2019-10-07 07:25:06,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19334 to 19334. [2019-10-07 07:25:06,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19334 states. [2019-10-07 07:25:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19334 states to 19334 states and 24298 transitions. [2019-10-07 07:25:06,738 INFO L78 Accepts]: Start accepts. Automaton has 19334 states and 24298 transitions. Word has length 286 [2019-10-07 07:25:06,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:25:06,739 INFO L462 AbstractCegarLoop]: Abstraction has 19334 states and 24298 transitions. [2019-10-07 07:25:06,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:25:06,739 INFO L276 IsEmpty]: Start isEmpty. Operand 19334 states and 24298 transitions. [2019-10-07 07:25:06,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2019-10-07 07:25:06,745 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:25:06,746 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:25:06,746 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:25:06,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:25:06,747 INFO L82 PathProgramCache]: Analyzing trace with hash -395108804, now seen corresponding path program 1 times [2019-10-07 07:25:06,747 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:25:06,747 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:06,747 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:06,747 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:25:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:25:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1545 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2019-10-07 07:25:07,092 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:07,093 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:25:07,093 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 07:25:07,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:25:07,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:25:07,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 07:25:07,094 INFO L87 Difference]: Start difference. First operand 19334 states and 24298 transitions. Second operand 5 states. [2019-10-07 07:25:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:25:08,167 INFO L93 Difference]: Finished difference Result 19340 states and 24303 transitions. [2019-10-07 07:25:08,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 07:25:08,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 291 [2019-10-07 07:25:08,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:25:08,262 INFO L225 Difference]: With dead ends: 19340 [2019-10-07 07:25:08,262 INFO L226 Difference]: Without dead ends: 19336 [2019-10-07 07:25:08,274 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 07:25:08,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19336 states. [2019-10-07 07:25:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19336 to 19336. [2019-10-07 07:25:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19336 states. [2019-10-07 07:25:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19336 states to 19336 states and 24299 transitions. [2019-10-07 07:25:09,249 INFO L78 Accepts]: Start accepts. Automaton has 19336 states and 24299 transitions. Word has length 291 [2019-10-07 07:25:09,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:25:09,250 INFO L462 AbstractCegarLoop]: Abstraction has 19336 states and 24299 transitions. [2019-10-07 07:25:09,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:25:09,250 INFO L276 IsEmpty]: Start isEmpty. Operand 19336 states and 24299 transitions. [2019-10-07 07:25:09,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2019-10-07 07:25:09,262 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:25:09,263 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:25:09,263 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:25:09,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:25:09,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1618161805, now seen corresponding path program 1 times [2019-10-07 07:25:09,264 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:25:09,264 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:09,264 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:09,265 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:09,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:25:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:25:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1551 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1538 trivial. 0 not checked. [2019-10-07 07:25:09,657 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:09,657 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:25:09,658 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 07:25:09,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:25:09,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:25:09,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 07:25:09,659 INFO L87 Difference]: Start difference. First operand 19336 states and 24299 transitions. Second operand 5 states. [2019-10-07 07:25:10,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:25:10,716 INFO L93 Difference]: Finished difference Result 19336 states and 24299 transitions. [2019-10-07 07:25:10,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 07:25:10,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2019-10-07 07:25:10,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:25:10,793 INFO L225 Difference]: With dead ends: 19336 [2019-10-07 07:25:10,793 INFO L226 Difference]: Without dead ends: 19035 [2019-10-07 07:25:10,803 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 07:25:10,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19035 states. [2019-10-07 07:25:11,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19035 to 18992. [2019-10-07 07:25:11,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18992 states. [2019-10-07 07:25:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18992 states to 18992 states and 23885 transitions. [2019-10-07 07:25:11,764 INFO L78 Accepts]: Start accepts. Automaton has 18992 states and 23885 transitions. Word has length 296 [2019-10-07 07:25:11,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:25:11,764 INFO L462 AbstractCegarLoop]: Abstraction has 18992 states and 23885 transitions. [2019-10-07 07:25:11,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:25:11,765 INFO L276 IsEmpty]: Start isEmpty. Operand 18992 states and 23885 transitions. [2019-10-07 07:25:11,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2019-10-07 07:25:11,790 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:25:11,790 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 9, 9, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:25:11,790 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:25:11,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:25:11,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1248271395, now seen corresponding path program 1 times [2019-10-07 07:25:11,791 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:25:11,791 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:11,791 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:11,792 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:11,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:25:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:25:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1648 trivial. 0 not checked. [2019-10-07 07:25:12,152 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:12,152 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:25:12,152 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:25:12,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:25:12,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:25:12,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:25:12,154 INFO L87 Difference]: Start difference. First operand 18992 states and 23885 transitions. Second operand 3 states. [2019-10-07 07:25:13,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:25:13,584 INFO L93 Difference]: Finished difference Result 45898 states and 57826 transitions. [2019-10-07 07:25:13,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:25:13,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 381 [2019-10-07 07:25:13,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:25:13,692 INFO L225 Difference]: With dead ends: 45898 [2019-10-07 07:25:13,692 INFO L226 Difference]: Without dead ends: 27293 [2019-10-07 07:25:13,736 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:25:13,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27293 states. [2019-10-07 07:25:15,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27293 to 27269. [2019-10-07 07:25:15,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27269 states. [2019-10-07 07:25:15,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27269 states to 27269 states and 34367 transitions. [2019-10-07 07:25:15,116 INFO L78 Accepts]: Start accepts. Automaton has 27269 states and 34367 transitions. Word has length 381 [2019-10-07 07:25:15,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:25:15,117 INFO L462 AbstractCegarLoop]: Abstraction has 27269 states and 34367 transitions. [2019-10-07 07:25:15,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:25:15,118 INFO L276 IsEmpty]: Start isEmpty. Operand 27269 states and 34367 transitions. [2019-10-07 07:25:15,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2019-10-07 07:25:15,143 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:25:15,144 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 8, 8, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:25:15,144 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:25:15,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:25:15,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2091290193, now seen corresponding path program 1 times [2019-10-07 07:25:15,145 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:25:15,145 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:15,145 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:15,145 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:15,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:25:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:25:16,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1632 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2019-10-07 07:25:16,466 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:16,467 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:25:16,467 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:25:16,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:25:16,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:25:16,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:25:16,469 INFO L87 Difference]: Start difference. First operand 27269 states and 34367 transitions. Second operand 3 states. [2019-10-07 07:25:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:25:18,040 INFO L93 Difference]: Finished difference Result 67957 states and 85804 transitions. [2019-10-07 07:25:18,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:25:18,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 381 [2019-10-07 07:25:18,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:25:18,195 INFO L225 Difference]: With dead ends: 67957 [2019-10-07 07:25:18,195 INFO L226 Difference]: Without dead ends: 41075 [2019-10-07 07:25:18,261 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:25:18,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41075 states. [2019-10-07 07:25:19,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41075 to 41057. [2019-10-07 07:25:19,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41057 states. [2019-10-07 07:25:19,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41057 states to 41057 states and 51857 transitions. [2019-10-07 07:25:19,989 INFO L78 Accepts]: Start accepts. Automaton has 41057 states and 51857 transitions. Word has length 381 [2019-10-07 07:25:19,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:25:19,989 INFO L462 AbstractCegarLoop]: Abstraction has 41057 states and 51857 transitions. [2019-10-07 07:25:19,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:25:19,990 INFO L276 IsEmpty]: Start isEmpty. Operand 41057 states and 51857 transitions. [2019-10-07 07:25:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2019-10-07 07:25:20,021 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:25:20,022 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 9, 9, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:25:20,022 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:25:20,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:25:20,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1734804749, now seen corresponding path program 1 times [2019-10-07 07:25:20,023 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:25:20,023 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:20,023 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:20,023 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:20,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:25:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:25:20,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1656 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1648 trivial. 0 not checked. [2019-10-07 07:25:20,322 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:20,322 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:25:20,322 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:25:20,323 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:25:20,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:25:20,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:25:20,324 INFO L87 Difference]: Start difference. First operand 41057 states and 51857 transitions. Second operand 3 states. [2019-10-07 07:25:22,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:25:22,312 INFO L93 Difference]: Finished difference Result 99691 states and 126139 transitions. [2019-10-07 07:25:22,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:25:22,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 383 [2019-10-07 07:25:22,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:25:22,560 INFO L225 Difference]: With dead ends: 99691 [2019-10-07 07:25:22,560 INFO L226 Difference]: Without dead ends: 59021 [2019-10-07 07:25:22,660 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:25:22,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59021 states. [2019-10-07 07:25:26,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59021 to 59009. [2019-10-07 07:25:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59009 states. [2019-10-07 07:25:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59009 states to 59009 states and 74690 transitions. [2019-10-07 07:25:26,570 INFO L78 Accepts]: Start accepts. Automaton has 59009 states and 74690 transitions. Word has length 383 [2019-10-07 07:25:26,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:25:26,571 INFO L462 AbstractCegarLoop]: Abstraction has 59009 states and 74690 transitions. [2019-10-07 07:25:26,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:25:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 59009 states and 74690 transitions. [2019-10-07 07:25:26,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2019-10-07 07:25:26,598 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:25:26,598 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 9, 9, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:25:26,599 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:25:26,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:25:26,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1452196284, now seen corresponding path program 1 times [2019-10-07 07:25:26,600 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:25:26,600 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:26,600 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:26,600 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:26,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:25:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:25:26,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1660 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1652 trivial. 0 not checked. [2019-10-07 07:25:26,853 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:26,853 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:25:26,853 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 07:25:26,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 07:25:26,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 07:25:26,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:25:26,855 INFO L87 Difference]: Start difference. First operand 59009 states and 74690 transitions. Second operand 3 states. [2019-10-07 07:25:29,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:25:29,299 INFO L93 Difference]: Finished difference Result 132656 states and 167446 transitions. [2019-10-07 07:25:29,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 07:25:29,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 394 [2019-10-07 07:25:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:25:29,509 INFO L225 Difference]: With dead ends: 132656 [2019-10-07 07:25:29,509 INFO L226 Difference]: Without dead ends: 74034 [2019-10-07 07:25:29,614 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 07:25:29,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74034 states. [2019-10-07 07:25:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74034 to 74018. [2019-10-07 07:25:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74018 states. [2019-10-07 07:25:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74018 states to 74018 states and 93107 transitions. [2019-10-07 07:25:34,408 INFO L78 Accepts]: Start accepts. Automaton has 74018 states and 93107 transitions. Word has length 394 [2019-10-07 07:25:34,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:25:34,410 INFO L462 AbstractCegarLoop]: Abstraction has 74018 states and 93107 transitions. [2019-10-07 07:25:34,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 07:25:34,410 INFO L276 IsEmpty]: Start isEmpty. Operand 74018 states and 93107 transitions. [2019-10-07 07:25:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2019-10-07 07:25:34,456 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:25:34,456 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 9, 9, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:25:34,457 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:25:34,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:25:34,457 INFO L82 PathProgramCache]: Analyzing trace with hash 196105576, now seen corresponding path program 1 times [2019-10-07 07:25:34,457 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:25:34,457 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:34,458 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:34,458 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:25:34,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:25:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:25:35,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1695 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1670 trivial. 0 not checked. [2019-10-07 07:25:35,177 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:25:35,177 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:25:35,177 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 07:25:35,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 07:25:35,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 07:25:35,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-07 07:25:35,178 INFO L87 Difference]: Start difference. First operand 74018 states and 93107 transitions. Second operand 8 states. [2019-10-07 07:25:59,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:25:59,656 INFO L93 Difference]: Finished difference Result 195612 states and 246124 transitions. [2019-10-07 07:25:59,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 07:25:59,658 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 406 [2019-10-07 07:25:59,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:26:00,027 INFO L225 Difference]: With dead ends: 195612 [2019-10-07 07:26:00,027 INFO L226 Difference]: Without dead ends: 121981 [2019-10-07 07:26:00,143 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-07 07:26:00,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121981 states. [2019-10-07 07:26:05,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121981 to 121787. [2019-10-07 07:26:05,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121787 states. [2019-10-07 07:26:05,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121787 states to 121787 states and 152753 transitions. [2019-10-07 07:26:05,305 INFO L78 Accepts]: Start accepts. Automaton has 121787 states and 152753 transitions. Word has length 406 [2019-10-07 07:26:05,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:26:05,306 INFO L462 AbstractCegarLoop]: Abstraction has 121787 states and 152753 transitions. [2019-10-07 07:26:05,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 07:26:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 121787 states and 152753 transitions. [2019-10-07 07:26:05,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2019-10-07 07:26:05,357 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:26:05,357 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 8, 8, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:26:05,358 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:26:05,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:26:05,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1911037746, now seen corresponding path program 1 times [2019-10-07 07:26:05,359 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:26:05,359 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:26:05,359 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:26:05,359 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:26:05,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:26:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:26:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1670 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1646 trivial. 0 not checked. [2019-10-07 07:26:05,637 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:26:05,638 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:26:05,638 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 07:26:05,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:26:05,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:26:05,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 07:26:05,641 INFO L87 Difference]: Start difference. First operand 121787 states and 152753 transitions. Second operand 5 states. [2019-10-07 07:26:18,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:26:18,435 INFO L93 Difference]: Finished difference Result 265154 states and 332974 transitions. [2019-10-07 07:26:18,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 07:26:18,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 405 [2019-10-07 07:26:18,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:26:18,839 INFO L225 Difference]: With dead ends: 265154 [2019-10-07 07:26:18,839 INFO L226 Difference]: Without dead ends: 143754 [2019-10-07 07:26:19,002 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-07 07:26:19,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143754 states. [2019-10-07 07:26:29,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143754 to 143648. [2019-10-07 07:26:29,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143648 states. [2019-10-07 07:26:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143648 states to 143648 states and 180275 transitions. [2019-10-07 07:26:29,412 INFO L78 Accepts]: Start accepts. Automaton has 143648 states and 180275 transitions. Word has length 405 [2019-10-07 07:26:29,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:26:29,414 INFO L462 AbstractCegarLoop]: Abstraction has 143648 states and 180275 transitions. [2019-10-07 07:26:29,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:26:29,414 INFO L276 IsEmpty]: Start isEmpty. Operand 143648 states and 180275 transitions. [2019-10-07 07:26:29,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2019-10-07 07:26:29,472 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:26:29,472 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 9, 9, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:26:29,473 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:26:29,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:26:29,473 INFO L82 PathProgramCache]: Analyzing trace with hash 229780097, now seen corresponding path program 1 times [2019-10-07 07:26:29,473 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:26:29,474 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:26:29,474 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:26:29,474 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:26:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:26:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:26:29,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1670 trivial. 0 not checked. [2019-10-07 07:26:29,738 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:26:29,738 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:26:29,739 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 07:26:29,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:26:29,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:26:29,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 07:26:29,740 INFO L87 Difference]: Start difference. First operand 143648 states and 180275 transitions. Second operand 5 states. [2019-10-07 07:26:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:26:50,972 INFO L93 Difference]: Finished difference Result 332891 states and 417544 transitions. [2019-10-07 07:26:50,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 07:26:50,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 406 [2019-10-07 07:26:50,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:26:51,553 INFO L225 Difference]: With dead ends: 332891 [2019-10-07 07:26:51,554 INFO L226 Difference]: Without dead ends: 189630 [2019-10-07 07:26:51,763 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-07 07:26:51,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189630 states. [2019-10-07 07:27:00,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189630 to 189470. [2019-10-07 07:27:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189470 states. [2019-10-07 07:27:01,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189470 states to 189470 states and 237284 transitions. [2019-10-07 07:27:01,120 INFO L78 Accepts]: Start accepts. Automaton has 189470 states and 237284 transitions. Word has length 406 [2019-10-07 07:27:01,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:27:01,121 INFO L462 AbstractCegarLoop]: Abstraction has 189470 states and 237284 transitions. [2019-10-07 07:27:01,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:27:01,121 INFO L276 IsEmpty]: Start isEmpty. Operand 189470 states and 237284 transitions. [2019-10-07 07:27:01,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2019-10-07 07:27:01,170 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:27:01,171 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 8, 8, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:27:01,171 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:27:01,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:27:01,172 INFO L82 PathProgramCache]: Analyzing trace with hash -646242100, now seen corresponding path program 1 times [2019-10-07 07:27:01,172 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:27:01,172 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:27:01,172 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:27:01,173 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:27:01,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:27:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:27:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1679 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 1646 trivial. 0 not checked. [2019-10-07 07:27:01,503 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:27:01,503 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 07:27:01,503 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 07:27:01,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:27:01,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:27:01,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 07:27:01,510 INFO L87 Difference]: Start difference. First operand 189470 states and 237284 transitions. Second operand 5 states. [2019-10-07 07:27:19,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:27:19,013 INFO L93 Difference]: Finished difference Result 378869 states and 474589 transitions. [2019-10-07 07:27:19,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 07:27:19,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 408 [2019-10-07 07:27:19,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:27:19,589 INFO L225 Difference]: With dead ends: 378869 [2019-10-07 07:27:19,589 INFO L226 Difference]: Without dead ends: 189786 [2019-10-07 07:27:19,850 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 07:27:20,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189786 states. [2019-10-07 07:27:33,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189786 to 189650. [2019-10-07 07:27:33,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189650 states. [2019-10-07 07:27:34,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189650 states to 189650 states and 237164 transitions. [2019-10-07 07:27:34,388 INFO L78 Accepts]: Start accepts. Automaton has 189650 states and 237164 transitions. Word has length 408 [2019-10-07 07:27:34,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:27:34,389 INFO L462 AbstractCegarLoop]: Abstraction has 189650 states and 237164 transitions. [2019-10-07 07:27:34,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:27:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 189650 states and 237164 transitions. [2019-10-07 07:27:34,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2019-10-07 07:27:34,447 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:27:34,448 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 9, 9, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:27:34,448 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:27:34,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:27:34,448 INFO L82 PathProgramCache]: Analyzing trace with hash -2010390477, now seen corresponding path program 1 times [2019-10-07 07:27:34,448 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:27:34,449 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:27:34,449 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:27:34,449 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:27:34,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:27:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:27:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 23 proven. 16 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2019-10-07 07:27:34,749 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:27:34,749 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 07:27:34,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 07:27:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:27:36,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 4407 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 07:27:36,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 07:27:36,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 1588 trivial. 0 not checked. [2019-10-07 07:27:36,482 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 07:27:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1670 trivial. 0 not checked. [2019-10-07 07:27:37,140 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 07:27:37,140 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 5] total 13 [2019-10-07 07:27:37,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:27:37,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:27:37,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-10-07 07:27:37,141 INFO L87 Difference]: Start difference. First operand 189650 states and 237164 transitions. Second operand 5 states. [2019-10-07 07:27:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:27:55,132 INFO L93 Difference]: Finished difference Result 409982 states and 512491 transitions. [2019-10-07 07:27:55,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 07:27:55,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 413 [2019-10-07 07:27:55,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:27:55,747 INFO L225 Difference]: With dead ends: 409982 [2019-10-07 07:27:55,747 INFO L226 Difference]: Without dead ends: 220719 [2019-10-07 07:27:55,991 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 823 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-10-07 07:27:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220719 states. [2019-10-07 07:28:14,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220719 to 220583. [2019-10-07 07:28:14,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220583 states. [2019-10-07 07:28:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220583 states to 220583 states and 274886 transitions. [2019-10-07 07:28:14,935 INFO L78 Accepts]: Start accepts. Automaton has 220583 states and 274886 transitions. Word has length 413 [2019-10-07 07:28:14,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:28:14,935 INFO L462 AbstractCegarLoop]: Abstraction has 220583 states and 274886 transitions. [2019-10-07 07:28:14,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:28:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 220583 states and 274886 transitions. [2019-10-07 07:28:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2019-10-07 07:28:14,979 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:28:14,979 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 10, 10, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:28:15,180 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 07:28:15,181 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:28:15,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:28:15,181 INFO L82 PathProgramCache]: Analyzing trace with hash -2140199230, now seen corresponding path program 1 times [2019-10-07 07:28:15,182 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:28:15,182 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:28:15,182 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:28:15,183 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:28:15,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:28:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:28:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 1686 trivial. 0 not checked. [2019-10-07 07:28:15,463 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:28:15,464 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 07:28:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 07:28:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:28:16,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 4370 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 07:28:16,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 07:28:16,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 1600 trivial. 0 not checked. [2019-10-07 07:28:16,650 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 07:28:18,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1724 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 1697 trivial. 0 not checked. [2019-10-07 07:28:18,187 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 07:28:18,187 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 5] total 13 [2019-10-07 07:28:18,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 07:28:18,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 07:28:18,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-10-07 07:28:18,188 INFO L87 Difference]: Start difference. First operand 220583 states and 274886 transitions. Second operand 5 states. [2019-10-07 07:28:37,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 07:28:37,057 INFO L93 Difference]: Finished difference Result 490460 states and 612709 transitions. [2019-10-07 07:28:37,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 07:28:37,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 414 [2019-10-07 07:28:37,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 07:28:37,889 INFO L225 Difference]: With dead ends: 490460 [2019-10-07 07:28:37,889 INFO L226 Difference]: Without dead ends: 270264 [2019-10-07 07:28:38,175 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 825 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-10-07 07:28:38,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270264 states. [2019-10-07 07:29:01,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270264 to 270074. [2019-10-07 07:29:01,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270074 states. [2019-10-07 07:29:01,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270074 states to 270074 states and 337028 transitions. [2019-10-07 07:29:01,828 INFO L78 Accepts]: Start accepts. Automaton has 270074 states and 337028 transitions. Word has length 414 [2019-10-07 07:29:01,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 07:29:01,828 INFO L462 AbstractCegarLoop]: Abstraction has 270074 states and 337028 transitions. [2019-10-07 07:29:01,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 07:29:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 270074 states and 337028 transitions. [2019-10-07 07:29:01,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2019-10-07 07:29:01,914 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 07:29:01,914 INFO L385 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 10, 10, 9, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 07:29:02,115 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 07:29:02,116 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 07:29:02,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 07:29:02,117 INFO L82 PathProgramCache]: Analyzing trace with hash 899511119, now seen corresponding path program 1 times [2019-10-07 07:29:02,117 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 07:29:02,117 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:29:02,118 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:29:02,118 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 07:29:02,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 07:29:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:29:02,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1792 backedges. 50 proven. 10 refuted. 0 times theorem prover too weak. 1732 trivial. 0 not checked. [2019-10-07 07:29:02,383 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 07:29:02,383 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 07:29:02,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 07:29:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 07:29:03,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 4501 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 07:29:03,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 07:29:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1792 backedges. 168 proven. 2 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2019-10-07 07:29:03,700 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 07:29:05,082 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 07:29:05,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1792 backedges. 50 proven. 10 refuted. 0 times theorem prover too weak. 1732 trivial. 0 not checked. [2019-10-07 07:29:05,382 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 07:29:05,438 INFO L162 IcfgInterpreter]: Started Sifa with 221 locations of interest [2019-10-07 07:29:05,438 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 07:29:05,446 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 07:29:05,453 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 07:29:05,454 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 07:29:31,999 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1655 [2019-10-07 07:29:35,346 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-10-07 07:29:36,453 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1642 [2019-10-07 07:29:37,035 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1642 [2019-10-07 07:29:37,621 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1642 [2019-10-07 07:29:37,740 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2019-10-07 07:29:39,026 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 1870 [2019-10-07 07:29:40,213 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1870 [2019-10-07 07:29:41,521 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 1870 [2019-10-07 07:29:42,644 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1870 [2019-10-07 07:29:45,080 WARN L191 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 1872 DAG size of output: 1870 [2019-10-07 07:29:46,373 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 1870 [2019-10-07 07:29:46,537 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2019-10-07 07:29:47,630 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1870 [2019-10-07 07:29:48,919 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 1870 [2019-10-07 07:29:49,980 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1870 [2019-10-07 07:29:51,358 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 1870 [2019-10-07 07:29:51,409 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 511 for LOIs [2019-10-07 07:29:52,251 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 1633 [2019-10-07 07:29:52,747 WARN L191 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 1633 [2019-10-07 07:29:54,048 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 1861 [2019-10-07 07:29:54,051 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1962 for LOIs [2019-10-07 07:29:55,156 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1962 [2019-10-07 07:29:56,238 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1962 [2019-10-07 07:29:56,705 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:29:58,324 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:29:59,693 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 1962 [2019-10-07 07:30:00,777 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1962 [2019-10-07 07:30:00,967 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:02,839 WARN L191 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:04,009 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:05,359 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:05,702 WARN L191 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:07,527 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:09,628 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 2158 DAG size of output: 1968 [2019-10-07 07:30:10,976 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:11,174 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:17,909 WARN L191 SmtUtils]: Spent 6.73 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:19,019 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:20,102 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:20,292 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:21,904 WARN L191 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:22,988 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:24,096 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:24,288 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:25,870 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:26,926 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:28,022 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:28,208 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:29,835 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:30,930 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:32,015 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:32,207 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:33,839 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:35,027 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:36,114 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:36,296 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:37,925 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:39,002 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:40,118 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:40,299 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:41,919 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:42,999 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:44,077 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:44,260 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:45,871 WARN L191 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:46,964 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:48,069 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:48,252 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:49,877 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:50,966 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:52,043 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:52,225 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:53,859 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:54,933 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:56,047 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:56,231 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:30:57,804 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:30:58,870 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:30:59,951 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:31:00,141 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:31:01,753 WARN L191 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:31:02,851 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:31:03,919 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:31:04,109 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:31:05,695 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:31:06,781 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:31:07,877 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:31:08,059 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:31:09,692 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:31:10,811 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:31:11,912 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1968 [2019-10-07 07:31:12,108 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-07 07:31:13,720 WARN L191 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 2156 [2019-10-07 07:31:14,279 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 07:31:14,281 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 07:31:14,300 INFO L168 Benchmark]: Toolchain (without parser) took 417379.78 ms. Allocated memory was 138.9 MB in the beginning and 4.4 GB in the end (delta: 4.2 GB). Free memory was 94.5 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2019-10-07 07:31:14,306 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 07:31:14,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2920.34 ms. Allocated memory was 138.9 MB in the beginning and 254.3 MB in the end (delta: 115.3 MB). Free memory was 94.3 MB in the beginning and 178.6 MB in the end (delta: -84.3 MB). Peak memory consumption was 119.5 MB. Max. memory is 7.1 GB. [2019-10-07 07:31:14,308 INFO L168 Benchmark]: Boogie Preprocessor took 350.10 ms. Allocated memory is still 254.3 MB. Free memory was 178.6 MB in the beginning and 157.6 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-10-07 07:31:14,308 INFO L168 Benchmark]: RCFGBuilder took 8013.00 ms. Allocated memory was 254.3 MB in the beginning and 380.1 MB in the end (delta: 125.8 MB). Free memory was 157.6 MB in the beginning and 195.3 MB in the end (delta: -37.7 MB). Peak memory consumption was 155.2 MB. Max. memory is 7.1 GB. [2019-10-07 07:31:14,309 INFO L168 Benchmark]: TraceAbstraction took 406086.41 ms. Allocated memory was 380.1 MB in the beginning and 4.4 GB in the end (delta: 4.0 GB). Free memory was 195.3 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-10-07 07:31:14,318 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 122.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2920.34 ms. Allocated memory was 138.9 MB in the beginning and 254.3 MB in the end (delta: 115.3 MB). Free memory was 94.3 MB in the beginning and 178.6 MB in the end (delta: -84.3 MB). Peak memory consumption was 119.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 350.10 ms. Allocated memory is still 254.3 MB. Free memory was 178.6 MB in the beginning and 157.6 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8013.00 ms. Allocated memory was 254.3 MB in the beginning and 380.1 MB in the end (delta: 125.8 MB). Free memory was 157.6 MB in the beginning and 195.3 MB in the end (delta: -37.7 MB). Peak memory consumption was 155.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 406086.41 ms. Allocated memory was 380.1 MB in the beginning and 4.4 GB in the end (delta: 4.0 GB). Free memory was 195.3 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...